Please open Accordance in Safe Mode to correct this issue. In order to open Accordance Safe Mode on a Mac computer, press your ‘option’ key as you open Accordance. In the Safe Mode window, choose the last option 'Clean up installed fonts' and Launch Accordance.

Deleting Helena and then reinstalling solved the problem. However, now I need to locate Helena for Suitcase Fusion to make use of it in Word. A Spotlight search doesn't locate it. Where does Accordance store its fonts in 12.1.3 on OSX Sierra?

That is the correct location, but actually we do not recommend that you use our older individual fonts in Word, but rather the new Accordance Unicode font which contains almost all characters from our older fonts.

You would still need Helena for older documents saved with it. Running a fresh copy of Accordance 12.1.3 should reinstall the older fonts on Mac (not on Windows).

I will be happy to screenshare to sort all this our for you. You can send a PM with your contact information.